Discovery at USP reveals how Brazilian arnica can revolutionize the production of silver nanoparticles with less environmental impact.

Written by Caio Aviz

Published on 01/04/2026 at 15:47

Updated on 02/05/2026 at 20:33

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Scientific innovation uses Brazilian arnica to produce silver nanoparticles with lower toxicity and expand industrial applications with an environmental focus

A relevant scientific research was recently developed by specialists from the University of São Paulo, with a direct impact on the pharmaceutical and environmental fields. The study conducted at the Faculty of Pharmaceutical Sciences of Ribeirão Preto presented a new approach for the production of naturally-based silver nanoparticles. The method uses Brazilian arnica as a reducing agent, replacing traditional processes that employ toxic compounds. The proposal reorganizes industrial practices by prioritizing sustainability and safety in production.

Use of silver nanoparticles and their impacts

Silver nanoparticles are widely used in different industrial segments. They are present in dressings, medical equipment, cosmetics, and food packaging. These particles have relevant antimicrobial, antifungal, and antiviral properties. The use of these characteristics makes the material essential for various applications. On the other hand, the presence of these substances can generate negative impacts. They can cause cell death and interfere with the balance of microorganisms in the environment. The accumulation and dispersion capacity increases environmental and health risks.

Green synthesis redefines the production process

The developed technique utilizes the concept of green synthesis to reduce risks in the production process. According to Paulo Augusto Marques Chagas, the goal is to eliminate the use of toxic reagents and reduce energy consumption. The method employs aqueous extract of Brazilian arnica as the central element of the chemical transformation. Metal ions are converted into nanoparticles in a controlled manner. This process occurs without the use of hazardous solvents. The reduction of toxic waste is observed as one of the main results of the innovation. The strategy follows a line already investigated in the production of metallic nanoparticles.

ARTICLE CONTINUES BELOW

Origin of the research and academic development

The development of the research began at the Environmental Control Laboratory. The center is coordinated by Mônica Lopes Aguiar from the Federal University of São Carlos. The group was already working with sustainable processes and material reuse. The search for new solutions led to the creation of an alternative method for nanoparticle synthesis. The project evolved within the academic environment. Collaboration among researchers contributed to the consolidation of the results.

Market application and technological advancement

The technology is in the final development phase. The patent application for the method has already been submitted by the team. A scientific article is being prepared based on the results obtained. Green synthesis has been applied in nanofibers used in air filtration. The developed material exhibits antibacterial properties. The application demonstrates potential for industrial use. The proposal maintains a focus on sustainability and efficiency.

Environmental impact and perspectives of the technology

The replacement of toxic reagents with natural elements reduces the generation of hazardous waste. The method also contributes to lower energy consumption in the production process. The innovation highlights the possibility of adapting industrial practices. Nanotechnology begins to incorporate more sustainable solutions. The approach reinforces the role of scientific research in transforming production processes.

Discovery at USP reveals how Brazilian arnica can revolutionize the production of silver nanoparticles with less environmental impact.

Scientific innovation uses Brazilian arnica to produce silver nanoparticles with lower toxicity and expand industrial applications with an environmental focus

Use of silver nanoparticles and their impacts

Green synthesis redefines the production process

Origin of the research and academic development

Market application and technological advancement

Environmental impact and perspectives of the technology

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Discovery at USP reveals how Brazilian arnica can revolutionize the production of silver nanoparticles with less environmental impact.

Scientific innovation uses Brazilian arnica to produce silver nanoparticles with lower toxicity and expand industrial applications with an environmental focus

Use of silver nanoparticles and their impacts

Green synthesis redefines the production process

Origin of the research and academic development

Market application and technological advancement

Environmental impact and perspectives of the technology

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China is building an artificial island in the middle of the sea, covering 20 km², to construct the largest offshore airport in the world, the Dalian Jinzhouwan. This $4.3 billion project is anchored on more than 3,000 pillars embedded in the rock beneath the ocean and is scheduled to open in 2035.

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